182336
domain: N
Appears in sequences
- a(n) = n!/2-(-2)^(n-2)*(n-2).at n=9A186639
- Number of nX1 0..2 arrays with exactly floor(nX1/2) elements unequal to at least one king-move neighbor, with new values introduced in row major 0..2 order.at n=18A222395
- Number of permutations of symmetric group S_n with an odd number of cycles of length 2 or more.at n=9A373340
- Triangle T(n, k) for the number of permutations of symmetric group S_n with an odd number of non-fixed point cycles, without k <= n particular fixed points.at n=45A374420